TWI694439B - Sound input device having one-pressed sound compensation function and method of sound compensation - Google Patents

Abstract

The present application provides a sound input device having one-pressed sound compensation function includes a case that has a button disposed thereon. A sound inputting portion is to collect an analog signal. A signal processing module is to convert the analog signal into a digital signal. A circuit module includes a buffer unit configured to receive and store the digital signal. A computing unit is to capture a certain part of the stored digital signal and to compute an average value of the certain part for obtaining a digital average value signal. The certain part of the stored digital signal represents the stored digital signal within a predetermined period of time prior to the button is pressed. When the button is pressed, the computing unit immediately obtains and transmits the digital average value signal to the signal processing module for converting the digital average value signal into an analog average value signal. The analog average value signal is outputted from the case via a speaker until the button is not pressed. The present application further provides a method of sound compensation.

Description

Sound input device with single-key sound compensation function and sound compensation method

The invention relates to a sound input device and a compensation method, in particular to a sound input device and a sound compensation method with a single-key sound compensation function.

Generally speaking, when singing, especially when the last word of the last sentence has a long tail, it often happens that the singer's lack of energy can't continue the last tone and intensity perfectly. Although this problem can be solved by adjusting the pitch or sound intensity through the stylized repair afterwards, it still can't cope with the situation of live or live singing or speech in real time.

In order to solve this problem, the way to improve the microphone in the past is to directly play the pre-recorded version or the original sound. However, this method will seriously distort the live singing, and must use a lot of space to store the audio track to be played, which is quite troublesome to implement.

The disclosure of the present invention proposes a sound input device with a single-key sound compensation function, which includes: a housing with at least keys on it; a sound input part connected to the housing for collecting sound, and the sound is analog signals; signals The processing module is set in the housing, and the analog signal is converted into a digital signal by the signal processing module; the circuit The module is installed in the housing and is electrically connected to the signal processing module; the circuit module includes a buffer unit for receiving the digital signal from the signal processing module and temporarily storing the digital signal therein, and the arithmetic unit is electrically connected The buffer unit is used to capture the part of the temporary digital signal in the buffer unit and calculate the average value of the part of the temporary digital signal to obtain the digital average signal, in which the digital average signal is converted by the signal processing module It is an analog average signal; and a loudspeaker is used to transmit the analog average signal received from the signal processing module out of the housing, wherein the part of temporarily storing digital signals refers to when the keys on the housing are self-contained Temporarily stored digital signal within a predetermined period of time before the state is switched to the pressed state, wherein when the button on the housing is in the pressed state, the arithmetic unit immediately obtains the digital average signal and sends it to the signal processing module for signal After the switch, the speaker is transmitted out of the housing until the key switches from the pressed state back to the normal state.

The disclosure of the present invention further proposes a sound compensation method, including: collecting sound through a sound input part, and the sound is an analog signal; converting the analog signal into a digital signal through a signal processing module; and receiving through a buffer unit of a circuit module The digital signal from the signal processing module temporarily stores the digital signal in the buffer unit; the compensation state is generated in response to the pressed state of the button; in response to the generation of the compensation state, the buffer unit is retrieved by the arithmetic unit of the circuit module Part of the temporary digital signal and calculate the average of the part of the temporary digital signal to obtain the digital average signal, where the part of the temporary digital signal refers to when the button on the housing is in a pressed state Temporarily store digital signals within a predetermined period of time before the time; convert the digital average signal into an analog average signal through the signal processing module; send the analog average signal received from the signal processing module through the speaker; The stop compensation state is generated in response to the normal state of the button; and the transmission of the analog average signal is stopped in response to the stop compensation state.

In order to further understand the technology, method and efficacy of the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. It is believed that the purpose, features and characteristics of the present invention can be deepened and specific Understand The drawings are provided for reference and explanation only, and are not intended to limit the present invention.

1: shell

100: Button

10: Inner modeling group

11: Signal processing module

111: Analog to Digital Converter (ADC)

112: Digital Analog Converter (DAC)

12: Circuit module

121: buffer unit

122: arithmetic unit

123: Vocal capture unit

124: Anti-noise unit

125: automatic gain unit

13: Power management module

131: Power supply

132: Voltage detector

133: Low voltage warning device

2: voice input section

3: speakers

P1: Press

P2: Stop pressing

FIG. 1 is a schematic diagram of a sound input device with single-key sound compensation function of the present invention.

FIG. 2 shows a functional block diagram of the internal modeling group of the sound input device of the present invention.

FIG. 3 shows a flowchart of the sound compensation method of the present invention.

FIG. 4 shows a schematic diagram of the efficacy of the sound compensation method of the present invention.

The following are specific specific examples to illustrate the implementation of the "sound input device and sound compensation method with single-key sound compensation function" disclosed by the present invention. Those skilled in the art can understand the present invention by the contents disclosed in this specification. Advantages and effects. The present invention can be implemented or applied through other different specific embodiments. Various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual sizes, and are declared in advance. The following embodiments will further describe the related technical content of the present invention, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

Referring to FIG. 1, the sound input device with a one-key sound compensation function of the present invention takes a microphone as an example, and includes a casing 1, a sound input section 2, and an internal modeling group 10 built in the casing 1. The sound input part 2 is connected to the casing 1 for collecting sound, and the sound is Analog signals. It is worth noting that in other embodiments, the sound input device of the present invention may be a speaker device other than a microphone, a loud speaker, or a microphone of an earphone, and is not limited to the microphone shown in FIG. 1. The casing 1 has a button 100 located outside. The button 100 can be set at any position that can be easily pressed by the user. The present invention does not limit the precise position of the button.

Referring to FIG. 2, the internal modeling group 10 of the housing 1 includes a signal processing module 11, a circuit module 12, and a power management module 13. The signal processing module 11 includes an analog-to-digital converter (ADC) 111 and a digital-to-analog converter (DAC) 112. More precisely, the analog signal is converted into a digital signal by the analog-to-digital converter 111 of the signal processing module 11, and the digital signal is converted into an analog signal by the digital-to-analog converter 112 of the signal processing module 11.

The circuit module 12 is electrically connected to the signal processing module 11. The circuit module 12 includes a buffer unit 121 and an arithmetic unit 122. The buffer unit 121 is used to receive the digital signal from the analog-to-digital converter 111 of the signal processing module 11 and temporarily store the digital signal in the buffer unit 121. The arithmetic unit 122 is electrically connected to the buffer unit 121 to capture the portion of the temporarily stored digital signal in the buffer unit 121 and calculate the average value of the portion of the temporarily stored digital signal to obtain the digital average signal. The part of the temporarily stored digital signal here refers to the temporarily stored digital signal within a predetermined period of time before the button 100 on the casing 1 is switched from the normal state to the pressed state. The key-pressed state here refers to the state where the key is pressed by the user, and the normal state of the key is the state where the key is generally not pressed. Of course, the switching of the two states can be set by the user in other ways, for example: Up or down, or directly covering the button with an object (such as a finger), the present invention does not limit this. In addition, more precisely, the predetermined period of time can be set by the user in advance, for example, a four-beat or eight-beat rhythm. It is worth noting that the predetermined time should not be too long, at least it must be a time period that can be played repeatedly without large fluctuations. In addition, the average value of the part of the temporarily stored digital signal includes at least the average value of the signal frequency and the average value of the signal strength. Just That is to say, the digital average signal includes the average value of the user's pitch and sound intensity within a predetermined period of time.

The power management module 13 includes a power supply 131, a voltage detector 132, and a low voltage alarm 133. The power supply 131 is electrically connected to the signal processing module 11 and the circuit module 12 to supply voltage to the signal processing module 11 and the circuit module 12. The voltage detector 132 is electrically connected to the power supply 131 to detect the voltage of the power supply 131. The low voltage alarm 133 is electrically connected to the voltage detector 132, and is used to issue an alarm signal when the voltage detector 132 detects that the voltage of the power supply 131 is lower than a predetermined voltage.

The sound input device of the present invention further includes a speaker 3 electrically connected to the digital analog converter 112 of the signal processing module 11 for transmitting the analog signal received from the digital analog converter 112 of the signal processing module 11 out of the housing 1.

In other embodiments of the present invention, the circuit module 12 may further include a vocal capture unit 123, an anti-noise unit 124, and an automatic gain unit 125, as shown in FIG. The vocal extraction unit 123 is electrically connected between the buffer unit 121 and the arithmetic unit 122. The vocal extraction unit 123 is used to separate the vocal signal from the digital signal. The anti-noise unit 124 is electrically connected between the vocal capture unit 123 and the arithmetic unit 122. The anti-noise unit 124 is used to reduce the signal strength other than the vocal signal. The automatic gain unit 125 is electrically connected between the vocal capture unit 123 and the arithmetic unit 122. The automatic gain unit 125 is used to amplify the signal strength of the vocal signal to a predetermined value. It is worth noting that the connection method of the anti-noise unit 124 and the automatic gain unit 125 can also be electrically connected in series to the vocal capture unit 123. Of course, the order of the anti-noise unit 124 and the automatic gain unit 125 is also Interchangeable, as long as it can achieve the effect of enhancing the human voice signal in the digital signal and reducing the noise of the environment. In addition, the vocal extraction unit 123, the anti-noise unit 124 and the automatic gain unit 125 can also be disposed in the buffer unit 121, the present invention does not focus on the combination or setting of the vocal extraction unit 123, the anti-noise unit 124 and the automatic gain unit 125 Any restrictions.

FIG. 3 is a flowchart of the sound compensation method of the present invention. The sound input device (such as the microphone in FIG. 1) of the key sound compensation function is achieved. 4 is a schematic diagram of the efficacy of the sound compensation method of the present invention. Referring to FIGS. 1, 2, 3, and 4 at the same time, the sound compensation method of the present invention includes the following steps.

Step S1: Collect the sound through the sound input unit 2, the sound is an analog signal, including human voice and ambient sound.

Step S2: Convert the analog signal into a digital signal by the analog-to-digital converter 111 in the signal processing module 11.

Step S3: The buffer unit 121 of the circuit module 12 receives the digital signal from the analog-to-digital converter 111 of the signal processing module 11 and temporarily stores the digital signal in the buffer unit 121. The vocal extraction unit 123 separates the vocal signal from the digital signal. The anti-noise unit 124 reduces the signal strength outside the vocal signal (ie, ambient sound). The automatic gain unit 125 amplifies the signal strength of the vocal signal, and temporarily stores the digital signal after the anti-noise and vocal gain in the buffer unit 121.

Step S4: A compensation state is generated in response to the pressed state of the button 100. It is worth noting that the operation unit 122 of the circuit module 12 can also generate the functions of the vocal extraction unit 123, the anti-noise unit 124, and the automatic gain unit 125 according to the generation of the compensation state, so as to achieve the power saving effect.

Step S5: In response to generating the compensation state, the arithmetic unit 122 of the circuit module 12 retrieves the portion of the temporarily stored digital signal, and calculates the average value of the temporarily stored digital signal to obtain the digital average signal. Referring to FIG. 4, at the moment when the button 100 is pressed (time P1), a predetermined period of time (for example, 4 beats) can be intercepted forward as a part of the temporarily stored digital signal, and the average of this part is calculated by the arithmetic unit 122 Value to obtain a digital average signal.

Step S6: The digital average signal is converted into an analog average signal by the digital-to-analog converter 112 of the signal processing module 11.

Step S7: The analog average signal of the digital-to-analog converter 112 received from the signal processing module 11 is transmitted out of the housing 2 through the speaker 3, as shown by the dotted line in FIG. It must be noted that the analog average signal transmission in the pressed state will be at least partially Substituting for the original digital signal is a complete replacement in this embodiment. In addition, since the average signal is continuously broadcast, the tone of the dotted line is consistent, and it will not be affected by the drop of the tone of the user (singer).

Step S8: In response to the normal state of the button 100, a stop compensation state is generated. The computing unit 122 of the circuit module 12 can disable the functions of the vocal capture unit 123, the anti-noise unit 124, and the automatic gain unit 125 according to the generation of the stop compensation state to achieve the power saving effect.

Step S9: In response to the generation of the stop compensation state, the transmission of the analog average signal is stopped. Referring to FIG. 4, during the period from when the button 100 is pressed to when it is stopped (that is, from the period P1 to the period P2), the sound input device of the present invention plays a digital average signal (dashed line) instead of the user’s original Digital signal (solid line).

According to the above embodiments, the sound input device with the one-key sound compensation function disclosed in the disclosure of the present invention only needs the user's one-key operation control (pressing and stopping pressing), and can easily maintain it without consciously running out of gas More standard pitch and sound intensity. In this way, for the singer, the performance during singing can be improved in a simple and direct way.

In summary, the sound input device with single-key sound compensation function of the present invention is more convenient and more effective than traditional methods in production or use, and does not consume excessive cost resources.

However, the above is only a preferred and feasible embodiment of the present invention, and therefore does not limit the scope of the patent of the present invention. Therefore, any equivalent structural changes caused by using the description and illustration content of the present invention are equally included in the present invention. Within the scope, together with Chen Ming.

10‧‧‧Inner Modeling Group

11‧‧‧Signal processing module

111‧‧‧Analog to Digital Converter (ADC)

112‧‧‧Digital Analog Converter (DAC)

12‧‧‧ circuit module

121‧‧‧Buffer unit

122‧‧‧ arithmetic unit

123‧‧‧Voice capture unit

124‧‧‧Anti-noise unit

125‧‧‧Automatic gain unit

13‧‧‧Power Management Module

131‧‧‧Power supply

132‧‧‧Voltage detector

133‧‧‧Low voltage warning device

3‧‧‧speaker

Claims (11)

A sound input device with a single-key sound compensation function includes: a housing with at least one key on it; a sound input part connected to the housing for collecting a sound, the sound is a Analog signal; a signal processing module, disposed in the housing, wherein the analog signal is converted into a digital signal by the signal processing module; a circuit module, disposed in the housing, electrically connected to the The signal processing module, the circuit module includes: a buffer unit for receiving the digital signal from the signal processing module and temporarily storing the digital signal therein, and an arithmetic unit, electrical The buffer unit is connected to extract a part of the temporarily stored digital signal in the buffer unit, and calculate an average value of the temporarily stored digital signal according to the signal frequency and signal strength to obtain a A digital average signal, wherein the digital average signal is converted into an analog average signal by the signal processing module; and a speaker for transmitting the analog average signal received from the signal processing module Out of the housing, wherein the portion of the temporarily stored digital signal refers to the position within a predetermined period of time when the key on the housing is switched from a normal state to a pressed state The temporarily stored digital signal, wherein, when the key on the housing is switched from the normal state to the pressed state, the arithmetic unit immediately obtains the digital average signal and transmits it to all The signal processing module performs signal conversion, and then transmits it out of the housing through the speaker until the key is switched from the pressed state back to the normal state. The sound input device with a single-key sound compensation function as described in claim 1, wherein the circuit module further includes a vocal capture unit electrically connected between the buffer unit and the arithmetic unit. The vocal capture unit is used to separate a vocal signal from the digital signal. The sound input device with a one-key sound compensation function according to claim 2, wherein the circuit module further includes an anti-noise unit electrically connected between the human voice acquisition unit and the arithmetic unit, The anti-noise unit is used to reduce the signal strength other than the human voice signal. The sound input device with a single-key sound compensation function according to claim 2, wherein the circuit module further includes an automatic gain unit electrically connected between the vocal capture unit and the arithmetic unit, The automatic gain unit is used to amplify the signal strength of the human voice signal to a predetermined value. The sound input device with a one-key sound compensation function according to claim 1, further comprising: a voltage detector electrically connected to a power supply, and the voltage detector is used to detect the voltage of the power supply ; And a low-voltage warning device, electrically connected to the voltage detector, the low-voltage warning device is used when the voltage detector detects that the voltage of the power supply is lower than a predetermined voltage, issuing a Warning signal. The sound input device with a single-key sound compensation function according to claim 1, wherein the signal processing module includes: an analog-to-digital converter to convert the analog signal into the digital signal; and A digital analog converter is used to convert the digital average signal into the analog average signal. A sound compensation method, which is applied to the sound compensation method of a sound input device with a one-key sound compensation function as recited in claim 1, includes the following steps: S1: collecting a sound by a sound input unit, the sound is a Analog signal; S2: Convert the analog signal into a digital signal by a signal processing module; S3: Receive the digital signal from the signal processing module by a buffer unit of a circuit module and Storing the digital signal temporarily in the buffer unit; S4: generating a compensation state in response to a pressed state of a key; S5: generating a compensation state in response to the compensation state by an operation of the circuit module The unit extracts a part of the temporary digital signal in the buffer unit, and calculates an average value of the temporary digital signal obtained according to the signal frequency and signal strength to obtain a digital average signal, wherein , The portion of the temporarily stored digital signal refers to the temporarily stored digital signal for a predetermined period of time before the button on the housing is in the pressed state; S6: by all The signal processing module converts the digital average signal into an analog average signal; S7: transmits the analog average signal received from the signal processing module through a speaker; S8: responds to A normal state of the button generates a stop compensation state; and S9: in response to generating the stop compensation state, stop transmitting the analog average signal. The sound compensation method according to claim 7, further comprising: in the step After S3, a human voice signal is separated from the digital signal by a human voice capture unit. The sound compensation method according to claim 7, further comprising: reducing a signal strength other than the human voice signal by an anti-noise unit. The sound compensation method according to claim 7, further comprising: amplifying the signal strength of the human voice signal to a predetermined value by an automatic gain unit. The sound compensation method according to claim 7, further comprising: detecting the voltage of a power supply by a voltage detector; and detecting a voltage at the voltage detector by a low voltage alarm When the voltage of the power supply is lower than a predetermined voltage, a warning signal is issued.

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